Now you can use premium-quality ARP chromemoly fasteners to install most anything on a car, boat, or trailer. The specially heat-treated 8740 chromemoly bolts feature a black oxide finish. They are nominally rated at 170,000 psi tensile strength to provide a substantial extra margin of safety over Grade 8 hardware. What's more, you can't beat the gorgeous looks of ARP fasteners, and their ability to resist rust. They're truly maintenance free!